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alina1380 [7]
3 years ago
5

Someone mind helping out?

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
6 0

Answer:

15 ft

Step-by-step explanation:

Pythagoras formula for a triangle with a 90 degree angle :

a^2 + b^2 = c^2

c is the side opposite of the 90 degree angle. exactly or situation here.

=> 9^2 + 12^2 = x^2

=> 81 + 144 = x^2 = 225

=> x = sqrt(225) = 15

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Which is the closet to the volume of the concrete needed to fill the pillar?
Shtirlitz [24]

Answer:

c) 21.4

Step-by-step explanation:

9.5 times 1.5 times 1.5 is 21.375 or 21.4 rounded

7 0
3 years ago
Please this urgent!!​
Papessa [141]

Answer:

Step-by-step explanation:

1)First convert mixed fraction to improper fraction and them prime factorize

6\frac{1}{4} = \frac{25}{4}\\

\sqrt{\frac{25}{4}}= \sqrt{\frac{5*5}{2*2}}= \frac{5}{2} = 2 \frac{1}{2} \\\\

2)

(2 \frac{1}{2}- 1 \frac{1}{2})*1 \frac{1}{7}=( \frac{5}{2}- \frac{3}{2})* \frac{8}{7}\\\\\\= \frac{2}{2}* \frac{8}{7}\\\\=1* \frac{8}{7}= \frac{8}{7}\\\\\\=1 \frac{1}{7}

3) 0.00706 = 7.06 * 10^{-3}

<em>4)</em> 144 = 12 * 12

12 = 6*2

6 = 2*3

Prime factorization of 144 = 2 * 3 * 2 * 2 * 3 *2

                                          = 2⁴ * 3²

5) To find LCM, prime factorize 96 & 144

96 = 2 * 2 * 2 * 2 * 2 * 3 = 2⁵ * 3

144 = 2⁴ * 3²

LCM = 2⁵ * 3² = 32 * 9 = 288

6) HCF

105 = 7 * 5 * 3

135 = 5 * 3* 3 * 3

180 = 5 * 3 * 3 * 2 * 2

HCF = 5 * 3 = 15

7) 24 = 3 * 2 * 2 * 2 = 3 * 2³

   36 = 3 * 3 * 2 * 2 = 3² * 2²

   40 = 5 * 2 * 2 * 2 = 5 * 2³

LCM = 5 * 2³ * 3² = 5 * 8 * 9  = 360

HCF = 2² = 4

Difference = 360 - 4 = 356

8) Multiply each digit of the binary number by the corresponding power of 2, solve the powers and add them all

1111 = 1 *2³ + 1*2² + 1*2¹ + 1*2° = 8 + 4 + 2 + 1 = 15

Ans: 15

9) 36₇ = 102₅

10) 6.9163 = 6.916

6 0
4 years ago
Read 2 more answers
Please Help! Simple Geometry!
marta [7]

Answer:

A     32.1

Step-by-step explanation:

Given two points (x_{1} ,y_{1} ) and (x_{2} ,y_{2}))

distance between to points = d = \sqrt{(x_{2} - x_{1} )^{2} + (y_{2} - y_{1} )^{2} }

Now B is (-4,5) and A is (2,0)

So AB = \sqrt{(-4-2)^{2} +(5-0)^{2} }  = \sqrt{36 + 25} = \sqrt{61\\} = 7.810...

C is (4,10)

So BC = \sqrt{(-4-4)^{2} +(5-10)^{2} } =\sqrt{64 + 25) } =\sqrt{89} =9.433...

D is (8,7)

So CD = \sqrt{(4-8)^{2} +(10-7)^{2} } =\sqrt{16 + 9} = \sqrt{25} = 5

E is (4,5)

So DE = \sqrt{(8-4)^{2} + (7-5)^{2} }  = \sqrt{16 + 4}  = \sqrt{20}  =  4.472...

and AE = \sqrt{(4-2)^2 + (5-0)^2} =\sqrt{4+25}  = \sqrt{29} = 5.385...

Perimeter = 7.810 + 9.433 + 5 + 4.472 + 5.385 = 32.1

7 0
3 years ago
7 x 4 x ?? =2,800 and 7 x 4 x ?? =28,000
Kamila [148]
7x4x100=2800
7x4x1000=28,000
4 0
3 years ago
Read 2 more answers
5,832, _, 648, 216, 72, _,8
UkoKoshka [18]
The first from right 8*3=24
72*3=216
216*3=648
648*3=1944
1944*3=5832
3 0
3 years ago
Read 2 more answers
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